On 08/03/2017 01:52 PM, Benjamin Herrenschmidt wrote:
> On Thu, 2017-08-03 at 19:52 +1000, Michael Ellerman wrote:
>> What if num is 0?
>>
>> Which it would be in the fallback case, if the affinity mask is empty,
>> AFAICS.
>
> How can the mask be empty though ? But yes, as I noted there is a
> pr
On Thu, 2017-08-03 at 19:52 +1000, Michael Ellerman wrote:
> What if num is 0?
>
> Which it would be in the fallback case, if the affinity mask is empty,
> AFAICS.
How can the mask be empty though ? But yes, as I noted there is a
problem if the value is 0. Not sure what to do if we are given an e
Benjamin Herrenschmidt writes:
> On Thu, 2017-08-03 at 09:45 +0200, Cédric Le Goater wrote:
>> On 08/02/2017 11:57 PM, Benjamin Herrenschmidt wrote:
>> > On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
>> > > If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
>> > >
On 08/02/2017 11:57 PM, Benjamin Herrenschmidt wrote:
> On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
>> If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
>> in xive_pick_irq_target() is decremented and reused in the last
>> returning call to xive_find_target_in_ma
On Thu, 2017-08-03 at 09:45 +0200, Cédric Le Goater wrote:
> On 08/02/2017 11:57 PM, Benjamin Herrenschmidt wrote:
> > On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
> > > If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
> > > in xive_pick_irq_target() is decrement
On Thu, 2017-08-03 at 10:01 +1000, Michael Ellerman wrote:
> Benjamin Herrenschmidt writes:
>
> > On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
> > > If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
> > > in xive_pick_irq_target() is decremented and reused in th
Benjamin Herrenschmidt writes:
> On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
>> If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
>> in xive_pick_irq_target() is decremented and reused in the last
>> returning call to xive_find_target_in_mask(). This can result
On Wed, 2017-08-02 at 18:43 +0200, Cédric Le Goater wrote:
> If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
> in xive_pick_irq_target() is decremented and reused in the last
> returning call to xive_find_target_in_mask(). This can result in such
> WARNINGs if the initial fuz
If xive_find_target_in_mask() fails to find a cpu, the fuzz value used
in xive_pick_irq_target() is decremented and reused in the last
returning call to xive_find_target_in_mask(). This can result in such
WARNINGs if the initial fuzz value is zero :
[0.094480] WARNING: CPU: 10 PID: 1 at
..
